Without a crystal ball, it is impossible to tell
Nothing except speak to the FTTP team.
Exactly
I am being told probable routing issue...
I dunno... 😕
I seriously doubt it’s an ONT Serial Number Mismatch.
You live on a Brownfield Site so the Engineer would’ve had to physically bring the ONT and Scan it there and then on site.
I bet it’s routed to the Wrong SASA, which would mean it’s on the wrong Head End Port.
Would that be a big job for Openreach?